Caster



FIG. 1 is a perspective view of a caster showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof, the undisclosed left side being a mirror image;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a cross-sectional view thereof, taken along line 7—7 of FIG. 2;

FIG. 8 is a cross-sectional view thereof, taken along line 8—8 of FIG. 3; and,

FIG. 9 is a perspective view of a caster showing a second embodiment thereof, it being understood that the only difference from the first embodiment is the interior broken line element.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design of a caster, as shown and described. 